| Texto completo | |
| Autor(es): |
Gao, Mingyang
;
Guo, Jun
;
Yang, Xiaodong
;
Zhou, Yanjiang
;
Laranjeira, Jose Artigas dos Santos
;
Sambrano, Julio R.
;
Zhang, Wen
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SENSORS AND ACTUATORS B-CHEMICAL; v. 451, p. 7-pg., 2026-03-15. |
| Resumo | |
While flexible gas sensors have attracted increasing attention, studies that advance their development toward system-level applications remain very limited. Here, we report a flexible WO3/MoS2 nitrogen dioxide (NO2) sensor. Benefiting from the synergistic effect of WO3 and MoS2, the sensor exhibits a remarkable 364.5 % response to 1 ppm target gas, along with excellent selectivity, stability, and humidity tolerance. Moreover, the device maintains stable sensing performance under repeated bending, confirming its mechanical robustness for wearable applications. To demonstrate practical utility, the sensor was built into an ambient system that provides continuous OLED readout and triggers audible buzzer alarms once the NO2 concentration exceeds user-defined thresholds. This work not only highlights the excellent sensing performance of the WO3/MoS2 heterojunction device but also demonstrates its strong potential for system-level deployment in real-world air quality monitoring and personal exposure warning scenarios. (AU) | |
| Processo FAPESP: | 22/16509-9 - Simulações computacionais de heteroestruturas baseadas em dicalcogenetos metálicos de transição, MXenos e novos alótropos do carbono |
| Beneficiário: | José Artigas dos Santos Laranjeira |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 24/19996-3 - Efeitos da Incidência de Laser e Feixe de Elétrons em Materiais Semicondutores: Investigação ab initio |
| Beneficiário: | Luis Antônio Cabral |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |